As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIR TURNBACK, AFTER TAKE-OFF WHEN GEAR RETRACTED, ECAM MSG L/G DOOR NOT CLOSED WITH LGCIU FAULT. REMOVED AND REPLACED FAULTY 27GA SENSOR. ALSO, REPLACED BOTH LGCIU''S TT 0059660 (S/N 00250): TT 0059829 (S/N 08788). RECOMMENDATION: REMAIN OPEN PENDING REVIEW OF TEARDOWN REPORT. A/C HAS NO HISTORY-- FLEET HAS HAD SEVERAL SIMILAR EVENTS SINCE JAN 2000 AS WELL AS GEAR DOOR CYCLING MALFUNCTIONS WITH LIKE FIXES.